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<div id="overview"><a href="../../../../../../../apidocs/com/katesoft/scale4j/rttp/jobs/tasklets/CacheCleanTasklet.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> com.katesoft.scale4j.rttp.jobs.tasklets;
<a class="jxr_linenumber" name="2" href="#2">2</a>   
<a class="jxr_linenumber" name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> com.hazelcast.core.IMap;
<a class="jxr_linenumber" name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.rttp.client.IClusterInstanceAware.ClusterInstanceAwareBean;
<a class="jxr_linenumber" name="5" href="#5">5</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.rttp.client.ISpringContextAccessor;
<a class="jxr_linenumber" name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.common.lang.RuntimeUtility;
<a class="jxr_linenumber" name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.common.services.IBeanNameReferences;
<a class="jxr_linenumber" name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.log.Logger;
<a class="jxr_linenumber" name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.log.LogFactory;
<a class="jxr_linenumber" name="10" href="#10">10</a>  <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.persistent.client.LocalHibernateTemplate;
<a class="jxr_linenumber" name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> com.katesoft.scale4j.persistent.model.unified.AbstractPersistentEntity;
<a class="jxr_linenumber" name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> org.hibernate.HibernateException;
<a class="jxr_linenumber" name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> org.hibernate.Session;
<a class="jxr_linenumber" name="14" href="#14">14</a>  <strong class="jxr_keyword">import</strong> org.hibernate.cache.CacheKey;
<a class="jxr_linenumber" name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> org.hibernate.cache.entry.CacheEntry;
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">import</strong> org.hibernate.event.EventSource;
<a class="jxr_linenumber" name="17" href="#17">17</a>  <strong class="jxr_keyword">import</strong> org.hibernate.persister.entity.AbstractEntityPersister;
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> org.springframework.batch.core.StepContribution;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> org.springframework.batch.core.scope.context.ChunkContext;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.springframework.batch.core.step.tasklet.Tasklet;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.springframework.batch.repeat.RepeatStatus;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.springframework.orm.hibernate3.HibernateCallback;
<a class="jxr_linenumber" name="23" href="#23">23</a>  
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.sql.SQLException;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.util.Map.Entry;
<a class="jxr_linenumber" name="27" href="#27">27</a>  
<a class="jxr_linenumber" name="28" href="#28">28</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * this class will clean cache if necessary.</em>
<a class="jxr_linenumber" name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> * @author kate2007</em>
<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../com/katesoft/scale4j/rttp/jobs/tasklets/CacheCleanTasklet.html">CacheCleanTasklet</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../com/katesoft/scale4j/rttp/client/IClusterInstanceAware.html">ClusterInstanceAwareBean</a> <strong class="jxr_keyword">implements</strong> Tasklet
<a class="jxr_linenumber" name="34" href="#34">34</a>  {
<a class="jxr_linenumber" name="35" href="#35">35</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String ENTITY_CLASS = <span class="jxr_string">"rttp.cache.clean.entity.class"</span>;
<a class="jxr_linenumber" name="36" href="#36">36</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../com/katesoft/scale4j/log/Logger.html">Logger</a> log = LogFactory.getLogger(getClass());
<a class="jxr_linenumber" name="37" href="#37">37</a>  
<a class="jxr_linenumber" name="38" href="#38">38</a>      @Override
<a class="jxr_linenumber" name="39" href="#39">39</a>      <strong class="jxr_keyword">public</strong> RepeatStatus execute(StepContribution contribution,
<a class="jxr_linenumber" name="40" href="#40">40</a>                                  ChunkContext chunkContext) <strong class="jxr_keyword">throws</strong> Exception
<a class="jxr_linenumber" name="41" href="#41">41</a>      {
<a class="jxr_linenumber" name="42" href="#42">42</a>          <strong class="jxr_keyword">final</strong> String region = chunkContext.getStepContext().getStepExecution().getJobParameters().getString(ENTITY_CLASS);
<a class="jxr_linenumber" name="43" href="#43">43</a>          <strong class="jxr_keyword">if</strong> (getInstance().getLifecycleService().isRunning()) {
<a class="jxr_linenumber" name="44" href="#44">44</a>              <strong class="jxr_keyword">final</strong> IMap&lt;Object, Object&gt; map = getInstance().getMap(region);
<a class="jxr_linenumber" name="45" href="#45">45</a>              <strong class="jxr_keyword">final</strong> <a href="../../../../../../com/katesoft/scale4j/persistent/client/LocalHibernateTemplate.html">LocalHibernateTemplate</a> template =
<a class="jxr_linenumber" name="46" href="#46">46</a>                  ISpringContextAccessor.ACCESSOR.getBean(IBeanNameReferences.HIBERNATE_TEMPLATE, LocalHibernateTemplate.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="47" href="#47">47</a>              template.execute(<strong class="jxr_keyword">new</strong> HibernateCallback&lt;Object&gt;()
<a class="jxr_linenumber" name="48" href="#48">48</a>              {
<a class="jxr_linenumber" name="49" href="#49">49</a>                  @Override
<a class="jxr_linenumber" name="50" href="#50">50</a>                  <strong class="jxr_keyword">public</strong> Object doInHibernate(Session session) <strong class="jxr_keyword">throws</strong> HibernateException, SQLException
<a class="jxr_linenumber" name="51" href="#51">51</a>                  {
<a class="jxr_linenumber" name="52" href="#52">52</a>                      <strong class="jxr_keyword">for</strong> (Iterator&lt;Entry&lt;Object, Object&gt;&gt; iterator = map.entrySet().iterator(); iterator.hasNext();) {
<a class="jxr_linenumber" name="53" href="#53">53</a>                          Entry&lt;Object, Object&gt; entry = iterator.next();
<a class="jxr_linenumber" name="54" href="#54">54</a>                          CacheEntry cacheEntry = (CacheEntry) entry.getValue();
<a class="jxr_linenumber" name="55" href="#55">55</a>                          CacheKey cacheKey = (CacheKey) entry.getKey();
<a class="jxr_linenumber" name="56" href="#56">56</a>                          <a href="../../../../../../com/katesoft/scale4j/persistent/model/unified/AbstractPersistentEntity.html">AbstractPersistentEntity</a> obj = (AbstractPersistentEntity) RuntimeUtility.newInstance(region);
<a class="jxr_linenumber" name="57" href="#57">57</a>                          AbstractEntityPersister p = ((AbstractEntityPersister) template.getSessionFactory().getClassMetadata(obj.getClass()));
<a class="jxr_linenumber" name="58" href="#58">58</a>                          cacheEntry.assemble(obj, cacheKey.getKey(), p, <strong class="jxr_keyword">null</strong>, (EventSource) session);
<a class="jxr_linenumber" name="59" href="#59">59</a>                          <strong class="jxr_keyword">if</strong> (obj.isCleanable()) { iterator.remove(); }
<a class="jxr_linenumber" name="60" href="#60">60</a>                      }
<a class="jxr_linenumber" name="61" href="#61">61</a>                      RuntimeUtility.gc();
<a class="jxr_linenumber" name="62" href="#62">62</a>                      <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="63" href="#63">63</a>                  }
<a class="jxr_linenumber" name="64" href="#64">64</a>              });
<a class="jxr_linenumber" name="65" href="#65">65</a>              <strong class="jxr_keyword">int</strong> oldSize = map.size();
<a class="jxr_linenumber" name="66" href="#66">66</a>              log.info(<span class="jxr_string">"region[%s] cleaned ::: old_size = %s, new_size = %s"</span>, region, oldSize, map.size());
<a class="jxr_linenumber" name="67" href="#67">67</a>          }
<a class="jxr_linenumber" name="68" href="#68">68</a>          <strong class="jxr_keyword">return</strong> RepeatStatus.FINISHED;
<a class="jxr_linenumber" name="69" href="#69">69</a>      }
<a class="jxr_linenumber" name="70" href="#70">70</a>  }
</pre>
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